I have a 10 yo LG Plasma model 50PS8OED.

Has always worked well but I do watch it through a Fetch Mighty box to get all the newer channels and to multi record. The set top box and TV are connected via HDMI.

Was watching all OK this afternoon then switched off and went outside - came back in a while later switched it all back on and TV said it could not get a signal on the HDMI channel - checked the other 3 HDMI channels and the same - antenna input was OK.

Assumed the set top box was at fault as it was showing the record light but reset it and plugged it into another tv and was all good.

Back to the TV tried other equipment with different cables in different ports but got the same result - the HDMI ports display OK in the menu and the TV knows when a cable is plugged in - just not receiving and signals.

Before I bin this TV and buy a new one, any suggestions on what I might have a look at?

Thanks

Mitzo